Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Tim Shimmin | 4cd4a03 | 2005-09-05 08:24:10 +1000 | [diff] [blame] | 2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of version 2 of the GNU General Public License as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it would be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 11 | * |
| 12 | * Further, this software is distributed without any warranty that it is |
| 13 | * free of the rightful claim of any third person regarding infringement |
| 14 | * or the like. Any license provided herein, whether implied or |
| 15 | * otherwise, applies only to this software file. Patent licenses, if |
| 16 | * any, provided herein do not apply to combinations of this program with |
| 17 | * other software, or any other product whatsoever. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write the Free Software Foundation, Inc., 59 |
| 21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 22 | * |
| 23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| 24 | * Mountain View, CA 94043, or: |
| 25 | * |
| 26 | * http://www.sgi.com |
| 27 | * |
| 28 | * For further information regarding this notice, see: |
| 29 | * |
| 30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| 31 | */ |
| 32 | |
| 33 | #include "xfs.h" |
| 34 | #include "xfs_fs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 35 | #include "xfs_bit.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include "xfs_log.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 37 | #include "xfs_inum.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "xfs_clnt.h" |
| 39 | #include "xfs_trans.h" |
| 40 | #include "xfs_sb.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 41 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include "xfs_dir.h" |
| 43 | #include "xfs_dir2.h" |
| 44 | #include "xfs_alloc.h" |
| 45 | #include "xfs_dmapi.h" |
| 46 | #include "xfs_quota.h" |
| 47 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include "xfs_bmap_btree.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 49 | #include "xfs_alloc_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include "xfs_ialloc_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include "xfs_dir_sf.h" |
| 52 | #include "xfs_dir2_sf.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 53 | #include "xfs_attr_sf.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #include "xfs_dinode.h" |
| 55 | #include "xfs_inode.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame^] | 56 | #include "xfs_ialloc.h" |
| 57 | #include "xfs_itable.h" |
| 58 | #include "xfs_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #include "xfs_bmap.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #include "xfs_rtalloc.h" |
| 61 | #include "xfs_error.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #include "xfs_rw.h" |
| 63 | #include "xfs_acl.h" |
| 64 | #include "xfs_cap.h" |
| 65 | #include "xfs_mac.h" |
| 66 | #include "xfs_attr.h" |
| 67 | #include "xfs_buf_item.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | #include "xfs_qm.h" |
| 69 | |
| 70 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ |
| 71 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ |
| 72 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ |
| 73 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 74 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ |
| 76 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 77 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ |
| 79 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 80 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ |
| 82 | |
| 83 | STATIC int |
| 84 | xfs_qm_parseargs( |
| 85 | struct bhv_desc *bhv, |
| 86 | char *options, |
| 87 | struct xfs_mount_args *args, |
| 88 | int update) |
| 89 | { |
| 90 | size_t length; |
| 91 | char *local_options = options; |
| 92 | char *this_char; |
| 93 | int error; |
| 94 | int referenced = update; |
| 95 | |
| 96 | while ((this_char = strsep(&local_options, ",")) != NULL) { |
| 97 | length = strlen(this_char); |
| 98 | if (local_options) |
| 99 | length++; |
| 100 | |
| 101 | if (!strcmp(this_char, MNTOPT_NOQUOTA)) { |
| 102 | args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA); |
| 103 | args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA); |
| 104 | referenced = update; |
| 105 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || |
| 106 | !strcmp(this_char, MNTOPT_UQUOTA) || |
| 107 | !strcmp(this_char, MNTOPT_USRQUOTA)) { |
| 108 | args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF; |
| 109 | referenced = 1; |
| 110 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || |
| 111 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { |
| 112 | args->flags |= XFSMNT_UQUOTA; |
| 113 | args->flags &= ~XFSMNT_UQUOTAENF; |
| 114 | referenced = 1; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 115 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || |
| 116 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { |
| 117 | args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF; |
| 118 | referenced = 1; |
| 119 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { |
| 120 | args->flags |= XFSMNT_PQUOTA; |
| 121 | args->flags &= ~XFSMNT_PQUOTAENF; |
| 122 | referenced = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || |
| 124 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { |
| 125 | args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF; |
| 126 | referenced = 1; |
| 127 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { |
| 128 | args->flags |= XFSMNT_GQUOTA; |
| 129 | args->flags &= ~XFSMNT_GQUOTAENF; |
| 130 | referenced = 1; |
| 131 | } else { |
| 132 | if (local_options) |
| 133 | *(local_options-1) = ','; |
| 134 | continue; |
| 135 | } |
| 136 | |
| 137 | while (length--) |
| 138 | *this_char++ = ','; |
| 139 | } |
| 140 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 141 | if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) { |
| 142 | cmn_err(CE_WARN, |
| 143 | "XFS: cannot mount with both project and group quota"); |
| 144 | return XFS_ERROR(EINVAL); |
| 145 | } |
| 146 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | PVFS_PARSEARGS(BHV_NEXT(bhv), options, args, update, error); |
| 148 | if (!error && !referenced) |
| 149 | bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM); |
| 150 | return error; |
| 151 | } |
| 152 | |
| 153 | STATIC int |
| 154 | xfs_qm_showargs( |
| 155 | struct bhv_desc *bhv, |
| 156 | struct seq_file *m) |
| 157 | { |
| 158 | struct vfs *vfsp = bhvtovfs(bhv); |
| 159 | struct xfs_mount *mp = XFS_VFSTOM(vfsp); |
| 160 | int error; |
| 161 | |
| 162 | if (mp->m_qflags & XFS_UQUOTA_ACCT) { |
| 163 | (mp->m_qflags & XFS_UQUOTA_ENFD) ? |
| 164 | seq_puts(m, "," MNTOPT_USRQUOTA) : |
| 165 | seq_puts(m, "," MNTOPT_UQUOTANOENF); |
| 166 | } |
| 167 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 168 | if (mp->m_qflags & XFS_PQUOTA_ACCT) { |
| 169 | (mp->m_qflags & XFS_OQUOTA_ENFD) ? |
| 170 | seq_puts(m, "," MNTOPT_PRJQUOTA) : |
| 171 | seq_puts(m, "," MNTOPT_PQUOTANOENF); |
| 172 | } |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | if (mp->m_qflags & XFS_GQUOTA_ACCT) { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 175 | (mp->m_qflags & XFS_OQUOTA_ENFD) ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | seq_puts(m, "," MNTOPT_GRPQUOTA) : |
| 177 | seq_puts(m, "," MNTOPT_GQUOTANOENF); |
| 178 | } |
| 179 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 180 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | seq_puts(m, "," MNTOPT_NOQUOTA); |
| 182 | |
| 183 | PVFS_SHOWARGS(BHV_NEXT(bhv), m, error); |
| 184 | return error; |
| 185 | } |
| 186 | |
| 187 | STATIC int |
| 188 | xfs_qm_mount( |
| 189 | struct bhv_desc *bhv, |
| 190 | struct xfs_mount_args *args, |
| 191 | struct cred *cr) |
| 192 | { |
| 193 | struct vfs *vfsp = bhvtovfs(bhv); |
| 194 | struct xfs_mount *mp = XFS_VFSTOM(vfsp); |
| 195 | int error; |
| 196 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 197 | if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA | XFSMNT_PQUOTA)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | xfs_qm_mount_quotainit(mp, args->flags); |
| 199 | PVFS_MOUNT(BHV_NEXT(bhv), args, cr, error); |
| 200 | return error; |
| 201 | } |
| 202 | |
| 203 | STATIC int |
| 204 | xfs_qm_syncall( |
| 205 | struct bhv_desc *bhv, |
| 206 | int flags, |
| 207 | cred_t *credp) |
| 208 | { |
| 209 | struct vfs *vfsp = bhvtovfs(bhv); |
| 210 | struct xfs_mount *mp = XFS_VFSTOM(vfsp); |
| 211 | int error; |
| 212 | |
| 213 | /* |
| 214 | * Get the Quota Manager to flush the dquots. |
| 215 | */ |
| 216 | if (XFS_IS_QUOTA_ON(mp)) { |
| 217 | if ((error = xfs_qm_sync(mp, flags))) { |
| 218 | /* |
| 219 | * If we got an IO error, we will be shutting down. |
| 220 | * So, there's nothing more for us to do here. |
| 221 | */ |
| 222 | ASSERT(error != EIO || XFS_FORCED_SHUTDOWN(mp)); |
| 223 | if (XFS_FORCED_SHUTDOWN(mp)) { |
| 224 | return XFS_ERROR(error); |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | PVFS_SYNC(BHV_NEXT(bhv), flags, credp, error); |
| 229 | return error; |
| 230 | } |
| 231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | STATIC int |
| 233 | xfs_qm_newmount( |
| 234 | xfs_mount_t *mp, |
| 235 | uint *needquotamount, |
| 236 | uint *quotaflags) |
| 237 | { |
| 238 | uint quotaondisk; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 239 | uint uquotaondisk = 0, gquotaondisk = 0, pquotaondisk = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
| 241 | *quotaflags = 0; |
| 242 | *needquotamount = B_FALSE; |
| 243 | |
| 244 | quotaondisk = XFS_SB_VERSION_HASQUOTA(&mp->m_sb) && |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 245 | (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | |
| 247 | if (quotaondisk) { |
| 248 | uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 249 | pquotaondisk = mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT; |
| 251 | } |
| 252 | |
| 253 | /* |
| 254 | * If the device itself is read-only, we can't allow |
| 255 | * the user to change the state of quota on the mount - |
| 256 | * this would generate a transaction on the ro device, |
| 257 | * which would lead to an I/O error and shutdown |
| 258 | */ |
| 259 | |
| 260 | if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) || |
| 261 | (!uquotaondisk && XFS_IS_UQUOTA_ON(mp)) || |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 262 | (pquotaondisk && !XFS_IS_PQUOTA_ON(mp)) || |
| 263 | (!pquotaondisk && XFS_IS_PQUOTA_ON(mp)) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | (gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) || |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 265 | (!gquotaondisk && XFS_IS_OQUOTA_ON(mp))) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | xfs_dev_is_read_only(mp, "changing quota state")) { |
| 267 | cmn_err(CE_WARN, |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 268 | "XFS: please mount with%s%s%s%s.", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | (!quotaondisk ? "out quota" : ""), |
| 270 | (uquotaondisk ? " usrquota" : ""), |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 271 | (pquotaondisk ? " prjquota" : ""), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | (gquotaondisk ? " grpquota" : "")); |
| 273 | return XFS_ERROR(EPERM); |
| 274 | } |
| 275 | |
| 276 | if (XFS_IS_QUOTA_ON(mp) || quotaondisk) { |
| 277 | /* |
| 278 | * Call mount_quotas at this point only if we won't have to do |
| 279 | * a quotacheck. |
| 280 | */ |
| 281 | if (quotaondisk && !XFS_QM_NEED_QUOTACHECK(mp)) { |
| 282 | /* |
| 283 | * If an error occured, qm_mount_quotas code |
| 284 | * has already disabled quotas. So, just finish |
| 285 | * mounting, and get on with the boring life |
| 286 | * without disk quotas. |
| 287 | */ |
| 288 | xfs_qm_mount_quotas(mp, 0); |
| 289 | } else { |
| 290 | /* |
| 291 | * Clear the quota flags, but remember them. This |
| 292 | * is so that the quota code doesn't get invoked |
| 293 | * before we're ready. This can happen when an |
| 294 | * inode goes inactive and wants to free blocks, |
| 295 | * or via xfs_log_mount_finish. |
| 296 | */ |
| 297 | *needquotamount = B_TRUE; |
| 298 | *quotaflags = mp->m_qflags; |
| 299 | mp->m_qflags = 0; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | return 0; |
| 304 | } |
| 305 | |
| 306 | STATIC int |
| 307 | xfs_qm_endmount( |
| 308 | xfs_mount_t *mp, |
| 309 | uint needquotamount, |
| 310 | uint quotaflags, |
| 311 | int mfsi_flags) |
| 312 | { |
| 313 | if (needquotamount) { |
| 314 | ASSERT(mp->m_qflags == 0); |
| 315 | mp->m_qflags = quotaflags; |
| 316 | xfs_qm_mount_quotas(mp, mfsi_flags); |
| 317 | } |
| 318 | |
| 319 | #if defined(DEBUG) && defined(XFS_LOUD_RECOVERY) |
| 320 | if (! (XFS_IS_QUOTA_ON(mp))) |
| 321 | xfs_fs_cmn_err(CE_NOTE, mp, "Disk quotas not turned on"); |
| 322 | else |
| 323 | xfs_fs_cmn_err(CE_NOTE, mp, "Disk quotas turned on"); |
| 324 | #endif |
| 325 | |
| 326 | #ifdef QUOTADEBUG |
| 327 | if (XFS_IS_QUOTA_ON(mp) && xfs_qm_internalqcheck(mp)) |
| 328 | cmn_err(CE_WARN, "XFS: mount internalqcheck failed"); |
| 329 | #endif |
| 330 | |
| 331 | return 0; |
| 332 | } |
| 333 | |
| 334 | STATIC void |
| 335 | xfs_qm_dqrele_null( |
| 336 | xfs_dquot_t *dq) |
| 337 | { |
| 338 | /* |
| 339 | * Called from XFS, where we always check first for a NULL dquot. |
| 340 | */ |
| 341 | if (!dq) |
| 342 | return; |
| 343 | xfs_qm_dqrele(dq); |
| 344 | } |
| 345 | |
| 346 | |
Christoph Hellwig | ba0f32d | 2005-06-21 15:36:52 +1000 | [diff] [blame] | 347 | STATIC struct xfs_qmops xfs_qmcore_xfs = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | .xfs_qminit = xfs_qm_newmount, |
| 349 | .xfs_qmdone = xfs_qm_unmount_quotadestroy, |
| 350 | .xfs_qmmount = xfs_qm_endmount, |
| 351 | .xfs_qmunmount = xfs_qm_unmount_quotas, |
| 352 | .xfs_dqrele = xfs_qm_dqrele_null, |
| 353 | .xfs_dqattach = xfs_qm_dqattach, |
| 354 | .xfs_dqdetach = xfs_qm_dqdetach, |
| 355 | .xfs_dqpurgeall = xfs_qm_dqpurge_all, |
| 356 | .xfs_dqvopalloc = xfs_qm_vop_dqalloc, |
| 357 | .xfs_dqvopcreate = xfs_qm_vop_dqattach_and_dqmod_newinode, |
| 358 | .xfs_dqvoprename = xfs_qm_vop_rename_dqattach, |
| 359 | .xfs_dqvopchown = xfs_qm_vop_chown, |
| 360 | .xfs_dqvopchownresv = xfs_qm_vop_chown_reserve, |
| 361 | .xfs_dqtrxops = &xfs_trans_dquot_ops, |
| 362 | }; |
| 363 | |
| 364 | struct bhv_vfsops xfs_qmops = { { |
| 365 | BHV_IDENTITY_INIT(VFS_BHV_QM, VFS_POSITION_QM), |
| 366 | .vfs_parseargs = xfs_qm_parseargs, |
| 367 | .vfs_showargs = xfs_qm_showargs, |
| 368 | .vfs_mount = xfs_qm_mount, |
| 369 | .vfs_sync = xfs_qm_syncall, |
| 370 | .vfs_quotactl = xfs_qm_quotactl, }, |
| 371 | }; |
| 372 | |
| 373 | |
| 374 | void __init |
| 375 | xfs_qm_init(void) |
| 376 | { |
| 377 | static char message[] __initdata = |
| 378 | KERN_INFO "SGI XFS Quota Management subsystem\n"; |
| 379 | |
| 380 | printk(message); |
| 381 | mutex_init(&xfs_Gqm_lock, MUTEX_DEFAULT, "xfs_qmlock"); |
| 382 | vfs_bhv_set_custom(&xfs_qmops, &xfs_qmcore_xfs); |
| 383 | xfs_qm_init_procfs(); |
| 384 | } |
| 385 | |
| 386 | void __exit |
| 387 | xfs_qm_exit(void) |
| 388 | { |
| 389 | vfs_bhv_clr_custom(&xfs_qmops); |
| 390 | xfs_qm_cleanup_procfs(); |
| 391 | if (qm_dqzone) |
| 392 | kmem_cache_destroy(qm_dqzone); |
| 393 | if (qm_dqtrxzone) |
| 394 | kmem_cache_destroy(qm_dqtrxzone); |
| 395 | } |